Home / 142,888.68-214,381.02-100,238.55

Finding the Fourth Proportional to 142,888.68, 214,381.02 and 100,238.55

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Solution

The fourth proportional to 142,888.68, 214,381.02 and 100,238.55 is: 150,391.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,888.68 : 214,381.02 = 100,238.55 : x
  2. Step 2: Convert to fraction form
    142,888.68/214,381.02 = 100,238.55/x
  3. Step 3: Cross multiply
    142,888.68x = 214,381.02 × 100,238.55
  4. Step 4: Simplify right side
    142,888.68x = 21,489,242,592.32
  5. Step 5: Solve for x
    x = 21,489,242,592.32/142,888.68
  6. Step 6: Final answer
    x = 150,391.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.